You app needs to handle all the possible push notification delivery states: Your app was just launched Your app was just brought from background to foreground Your app was already running in the foreground You do not get to choose at delivery time what presentation method is used to present the push notification, that is … Read more
This snippet will resize the image: UIGraphicsBeginImageContext(newSize); [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)]; UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); The variable newSize is a CGSize and can be defined like so: CGSize newSize = CGSizeMake(100.0f, 100.0f);
Well I found the answer thanks to someone from the Developer Forums, and you guys aren’t gonna like it! I’ve had a response from Apple on this. They’ve said they don’t and never have provided a method for detecting hardware mute switch and don’t intend to do so. 🙁 IMO there is definitely value in … Read more
In short, unless you have UIApplicationExitsOnSuspend in your Info.plist set to YES, in iOS4 and above there is no guarantee that applicationWillTerminate: will ever get called. As the documentation says: For applications that support background execution, this method is generally not called when the user quits the application because the application simply moves to the … Read more
In my original answer, at the end of this answer, I show how to retrieve contacts in iOS versions prior to 9.0 in a manner that addresses some of the problems entailed by other answers here. But, if only supporting iOS 9 and later, one should use the Contacts framework, avoiding some of the annoying … Read more
Doable, but tricky. Launching installed apps, like the FB or Twitter apps, is done using the Custom URL Scheme. These can be used both in other apps as well as on web sites. Here’s an article about how to do this with your own app. Seeing if the URL is there, though, can be tricky. … Read more
I abandoned that vocaro.com solution for other reasons (that solution would crash when used with atypical image formats, e.g. CMYK). Anyway, I now use the imageByScalingAspectFillSize method of the following UIImage category to make my square thumbnails. By the way, this automatically applies the scale of the main screen of the device (e.g. UIButton button … Read more
Any class in your application can become an “observer” for different notifications in the application. When you create (or load) your view controller, you’ll want to register it as an observer for the UIApplicationDidBecomeActiveNotification and specify which method that you want to call when that notification gets sent to your application. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(someMethod:) … Read more
You can get a list of running processes and from process ids may be you can figure out which ones are system processes and which one are 3rd party apps, but anyway I don’t believe you can use it in application for appstore. (code taken from here) – (NSArray *)runningProcesses { int mib[4] = {CTL_KERN, … Read more
Add the font files to your resource files Edit your Info.plist: Add a new entry with the key Fonts provided by application. For each of your files, add the file name to this array On the example below, I’ve added the font “DejaVu Sans Mono”: In your application you can the use [UIFont fontWithName:@”DejaVuSansMono-Bold” size:14.f]. … Read more